.mask {
        	width: 175px;
        	height: 175px;
        	background: rgba(194, 194, 194, 0.4);
        	position: absolute;
        	top: 0;
        	left: 0;
        	cursor: move;
        	display: none;
        }
		.preview_mask
		{
        	width: 500px;
			height: 500px;
			position: absolute;
			background: rgba(194, 112, 11, 0.4);
			cursor: move;
			display: none;
			top: 0;
			left: 0;
		}
